How to solve the taper ellipse in NC lathe machining?

How to solve the taper ellipse in NC lathe processing, the following is a simple answer by the NC manufacturer.

In the process of machining with NC lathe, the size and taper of the workpiece often appear, which will affect the accuracy of the product. This phenomenon mostly occurs when the workpiece protrudes too long from the chuck or the material hardness is too hard, which may also be the factor of the tool.

How to solve this situation?

1. Try to use tools with small rounded corners

2. Reduce finishing allowance.

3. The program uses U to compensate back. For example, the shaft with length 50, the leading end 20 and the trailing end 19.8 decrease the excessive taper, which can be g1u0.2z-50.f0.1.

4. For the irregular size fluctuation of the same length with a certain diameter, it may be caused by the wear of the lead screw or the lead screw ball, or the falling of iron filings and copper filings into the guide rail.

The roundness of outer diameter cutter and inner hole cutter is not enough. We generally call it ellipse. This situation is generally caused by the jumping of clamping material in rotation.